Journal
APPLIED PHYSICS LETTERS
Volume 87, Issue 24, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2142290
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The structural and electronic properties of fluorine (F)-doped boron nitride nanotubes (BNNTs) are studied using density functional methods. Our results indicate that F atoms prefer to substitute N atoms, resulting in substantial changes of BN layers. However, F substitutional doping results in no shallow impurity states. The adsorption of F atoms on B sites is more stable than that on N sites. BNNTs with adsorbed F atoms are p-type semiconductors, suggesting the electronic conduction in F-doped multiwalled BNNTs with large conductivity observed experimentally might be of p-type due to the adsorbed F atoms, but not n-type as supposed before. (c) 2005 American Institute of Physics.
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